Some Presidents enjoy history-changing terms of office and find themselves elevated to the Pantheon of greatness. Other Chief Executives, however, do as much (and sometimes more) once they leave office as they ever did in power. Here, then, for your Friday History List enjoyment, are the top five ex-presidents:

5. Herbert Hoover – With his presidency devastated (along with the nation) by the Great Depression, a personally repudiated Herbert Hoover was trounced by Franklin Delano Roosevelt in the 1932 election. Because his image was so tarnished, Hoover largely stayed out of the public eye in the 1930s, resurfacing in 1941 to speak out against American entry into the Second World War, and a possible alliance with the Soviet Union against Germany (he correctly foresaw that helping the Russians defeat Hitler would give them control of much of Europe). After the war, President Truman sent Hoover to Germany to assess its need for economic relief and the state of U.S. occupation; one of Hoover’s innovations was a school meals program for German children Hooverspeisung (Hoover meals). His Hoover Commissions in the years 1947-1949 and 1953-1955, promoted efficiency in the United States Government. The author of over a dozen books, he oversaw the Hoover Institution at Stanford University, a public policy think-tank that had been created in 1919, and did much fund-raising for the Boys Clubs (now the Boys & Girls Clubs of America).

Herbert Hoover

4. Thomas Jefferson – After having served two terms as president, in 1809 Thomas Jefferson retired to Monticello, his plantation in Virginia. Continuing in the spirit of his “Renaissance man” personality, Jefferson studied the classics, worked as an architect, and was a prolific writer of letters, most notably to his former rival John Adams. For many of these years he was occupied with the creation of the University of Virginia, doing most of the architectural design himself. He served as president of the American Philosophical Society from 1797 to 1815.

Thomas Jefferson

3. John Quincy Adams – Defeated overwhelmingly by Andrew Jackson in 1828, career public servant John Quincy Adams reentered the arena almost immediately, becoming in 1830 the only U.S. president to be elected to the House of Representatives after leaving office. He would faithfully serve in Congress, first as a National Republican and later as a Whig, until his death 17 years later. In the House, he was often the lonely antislavery voice, using parliamentary devices to bring up the subject in spite of the Gag Rule. In 1841, he successfully defended the rebellious slaves of the Spanish slave ship Amistad before the Supreme Court of the United States (Amistad is a great movie, by the way, you should see it). Adams did the work pro bono.

1. Jimmy Carter – Defeated by Ronald Reagan in 1980 after what many have considered to be one of the worst presidencies of the 20th century, Carter immediately got to work. In 1982, he established the Carter Center in Atlanta, to advance human rights and promote democracy by mediating conflicts, and monitoring the electoral process in support of free and fair elections. It also works to improve global health through the control and eradication of diseases, to diminish the stigma against mental illnesses and to improve nutrition through increased crop production in Africa. Carter has traveled the world since his electoral defeat, meeting with world leaders and sometimes negotiating agreements in support of world peace. In 2002 he was awarded the Nobel Peace Prize for his efforts. The author of over two dozen books, he is also well-known for his work with Habitat for Humanity.